The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 04, 2011
Filed:
Feb. 20, 2009
Kendall Ferguson, Stafford, VA (US);
Benjamin W. Remondi, Dickerson, MD (US);
Michael Timo Allison, East Grimstead, GB;
Michael Albright, Manassas, VA (US);
Kendall Ferguson, Stafford, VA (US);
Benjamin W. Remondi, Dickerson, MD (US);
Michael Timo Allison, East Grimstead, GB;
Michael Albright, Manassas, VA (US);
Trimble Navigation Limited, Westminster, CO (US);
Abstract
A format for providing messages among GNSS apparatus includes providing a message identification block and a message body. The message identification block includes information specifying a message length and a message type block specifying a message type. Rather than sending all data from one apparatus to another, ambiguous observation data is sent to conserve bandwidth. At the sender a deconstruction of GNSS code and carrier observations using knowledge of the signal structure and constellation geometry, together with simplifications of atmospheric models, allows removal from the observation data of that information which can be implicitly understood or recreated by the recipient. This enables only the necessary information to be packed for transmission to the recipient.